A dookfonder is something that lays eggs inside ones anus. It feeds off the fluids in the inner rectum and nurtures the eggs until they hatch and proceed to completely take over the host. The host then becomes becomes deranged and has a sole intent of murdering pastries and eating the creamy carcass left behind. The host also becomes susceptable to menstrastion of the anus into which he/she injects massive amounts of maple syrup. It should also be noted that the behavior of the now dookfondered host can be likened to that of a douchy Ernest Borgnine lookalike.
noun: Dude while you were passed out Mike totally shoved a dookfonder up your ass. Sha.